I too pre-ordered for the original stock version from SFRC and I just received mine (telescopic stock version). I haven't had a chance to shoot it yet, but I can try to provide some information.
Comments here are correct. It does not have a mechanism that locks the pump once it's forward (like a traditional pump shotgun). In fact, you can pull it back anytime, regardless of whether you've fired yet or not (which I guess is kinda nice since it makes it fairly easy to clear the chamber and make it safe). Which probably explains why it doesn't have the latch / button that pump guns have to release and pull back. It is a littttle stiff, but if you run it a bit it gets better. I think part of why it "feels" stiff to rack is because the forend is, IMO, a little on the small side, and it's slobbered in grease / oil so it's slippery. I plan on putting textured MLOK panels on the forend to bulk it up and make it easier to grip onto.
Just from dry cycling dummy rounds, I had no issues with ejection. I mean, it's manual action. I did notice that when you insert the magazine there isn't really a definitive click indicating that the magazine is seated correctly. So you "might" insert the magazine too far or not far enough. I've found it more foolproof to shove the magazine in with the forend pushed forward; that seems to seat the mag in fairly well.
Also - I'm not sure if this will happen to other people, but the red paint on my safety switch wipes off pretty easily

which I thought was pretty funny. I think after my next clean there won't be any red left

. Doesn't really bother me since I rarely use safety switches at the range and I make my guns safe by opening the chamber and using chamber flags, and this gun is super easy to rack open.
Love the size though - small, compact, lightweight. I really missed a compact PCC. I've been a little hesitant on the homesteader because of the absurd barrel length and bulkiness.
Thank you Derya for thinking of us Canadians. and thank you SFRC for your excellent service